# US 11,993,184 B2 · Vehicle seat monopost assembly and rotatable and height adjustable vehicle seat mounted thereon > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,993,184 B2 - Document ID: US11993184B2 - Status: Granted - Kind: B2 - Application number: 17/978,042 - Filed: 2022-10-31 - Published: 2023-06-08 - Granted: 2024-05-28 - Earliest claimed: 2021-12-06 - Assignees: Hyundai Motor Company; Kia Corporation; Das Co., Ltd - Applicants: Hyundai Motor Company; Kia Corporation; Das Co., Ltd - Inventors: Dong Woo Jeong; Sang Ho Kim; Seon Chae Na; Jae Hwan Lee; Ji Yong Park - Web page: https://patentgrep.com/patent/US11993184B2 ## CPC - B60N 2/164: {Linear actuator, e.g. screw mechanism} - B60N 2/02246: {Electric motors therefor} - B60N 2/02253: {characterised by the transmission between the electric motor and the seat or seat parts} - B60N 2/06: slidable (B60N2/12 {, B60N2/2209} take precedence) - B60N 2/146: {characterised by the locking device} - B60N 2/1605: {characterised by the cinematic} - B60N 2/005: Arrangement or mounting of seats in vehicles {, e.g. dismountable auxiliary seats}(B60N2/02 takes precedence {; for railway vehicles B61D1/04}) - B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR ## Abstract Proposed are a vehicle seat monopost assembly and a vehicle seat mounted thereon. In one aspect, a drive part includes a housing mounted on a lower frame connected to a vehicle body and a first engagement part configured to be rotated by a drive source. A second engagement part suitably may include a thread configured to be engaged with the first engagement part and a cylindrical body configured to be fixed to a vehicle seat frame. A connecting sleeve part is seated on the drive part and has an inner space into which the lead screw part is fitted. The connecting sleeve part is configured to restrict a rotation in response to an operation of a rotation restricting member. ## Claims ### Claim 1 A vehicle seat monopost assembly comprising: a drive part comprising a housing mounted on a lower frame configured to be connected to a vehicle body and a first engagement part; a second engagement part configured to be engaged with the first engagement part and configured to be affixed to a vehicle seat frame; and a connecting sleeve part seated on the drive part and having an inner space into which the second engagement part is fitted, wherein the first and second engagement parts are adapted to mate to provide an engagement, and wherein the first engagement part is a lead nut and the second engagement part is a lead screw part. ### Claim 2 (depends on 1) The vehicle seat monopost assembly of claim 1 further comprising a rotation restricting member. ### Claim 3 (depends on 2) The vehicle seat monopost assembly of claim 2 wherein the connecting sleeve part is configured to restrict a rotation in response to an operation of the rotation restricting member. ### Claim 4 (depends on 2) The vehicle seat monopost assembly of claim 2, wherein, when the rotation restricting member restricts rotation of the connecting sleeve part, the lead screw part is moved upward in the connecting sleeve part in response to rotation of the lead nut, and when the rotation restricting member allows the connecting sleeve part to rotate, both the connecting sleeve part and the lead screw part rotate during rotation of the lead nut. ### Claim 5 (depends on 1) A vehicle comprising the vehicle seat monopost assembly of claim 1. ### Claim 6 (depends on 1) The vehicle seat monopost assembly of claim 1, wherein the second engagement part is configured to be allowed to move in a vertical direction in the connecting sleeve part by a guide member. ### Claim 7 (depends on 6) The vehicle seat monopost assembly of claim 6, wherein the guide member comprises a key extending in a vertical direction on a cylindrical body of the lead screw part, and the connecting sleeve part has a key recess formed in an inner surface to be coupled to the key. ### Claim 8 (depends on 1) The vehicle seat monopost assembly of claim 1, wherein the first engagement part comprises a seating surface formed by a flange extending outward from a lower portion of the first engagement part, and the connecting sleeve part comprises a flange surface formed on a lower portion of the connecting sleeve part and extending outward, the flange surface being in contact with the seating surface such that the first engagement part supports the connecting sleeve part. ### Claim 9 (depends on 8) The vehicle seat monopost assembly of claim 8, further comprising a rotation restricting member, wherein the housing of the drive part comprises a housing cover facing the flange surface around a seating surface of the second engagement part, wherein the rotation restricting member comprises a fixing pin disposed on the housing cover so as to be exposable while moving up and down, and wherein the fixing pin is inserted into one of a plurality of fastening holes formed in the flange surface to restrict the rotation of the connecting sleeve part. ### Claim 10 (depends on 9) The vehicle seat monopost assembly of claim 9, wherein the outer surface of the housing cover is spaced apart from the flange surface by a predetermined distance. ### Claim 11 (depends on 9) The vehicle seat monopost assembly of claim 9, wherein the plurality of fastening holes is formed in the flange surface and spaced apart from each other by predetermined distances which are set to be minimum angles of rotation of the vehicle seat frame. ### Claim 12 (depends on 1) The vehicle seat monopost assembly of claim 1, further comprising: a drive motor configured to rotate the connecting sleeve part; and a drive gear configured to be rotated by the drive motor, wherein the connecting sleeve part comprises a driven gear configured to be engaged with the drive gear. ### Claim 13 (depends on 12) The vehicle seat monopost assembly of claim 12, wherein the drive motor and the drive gear are configured to be attached to a side portion of the drive part. ### Claim 14 (depends on 12) The vehicle seat monopost assembly of claim 12, wherein the drive motor and the drive gear are configured to be positioned adjacent to a side portion of the drive part. ### Claim 15 (depends on 1) A vehicle seat mounted on the vehicle seat monopost assembly of claim 1. ### Claim 16 (depends on 15) A vehicle comprising the vehicle seat of claim 15. ### Claim 17 (depends on 15) The vehicle seat of claim 15, further comprising a rotation restricting member, wherein, when the rotation restricting member restricts rotation of the connecting sleeve part, the lead screw part is moved upward in the connecting sleeve part in response to rotation of the lead nut, thereby adjusting the height of the vehicle seat, and when the rotation restricting member allows the connecting sleeve part to rotate, both the connecting sleeve part and the lead screw part rotate during rotation of the lead nut, thereby rotating the vehicle seat.